Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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Model-based Gain Scheduling Strategy for Air-to-fuel Ratio Control Algorithm of Passenger Car Diesel Engines

승용디젤엔진의 공연비 제어 알고리즘을 위한 모델기반 게인 스케줄링 전략에 대한 연구

  • Park, Inseok (Automotive Control and Electronics Laboratory (ACE Lab), Hanyang University) ;
  • Hong, Seungwoo (Department of Automotive Engineering, Graduate School, Hanyang University) ;
  • Sunwoo, Myoungho (Department of Automotive Engineering, Hanyang University)
  • 박인석 (한양대학교 자동차전자제어연구소) ;
  • 홍승우 (한양대학교 대학원 자동차공학과) ;
  • 선우명호 (한양대학교 미래자동차공학과)
  • Received : 2014.06.12
  • Accepted : 2014.08.08
  • Published : 2015.01.01
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Abstract

This study presents a model-based gain scheduling strategy for PI-based EGR controllers. The air-to-fuel ratio is used as an indirect measurement of the EGR rate. In order to cope with the nonlinearity and parameter varying characteristics of the EGR system, we proposed a static gain model of the EGR system using a new scheduling parameter. With the 810 steady-state measurements, the static gain model achieved 0.94 of R-squared value. Based on the static gain of the EGR system, the PI gains were robustly designed using quantitative feedback theory. Consequently, the gains of the PI controller are scheduled according to the static gain parameter of the EGR path in runtime. The proposed model-based gain scheduling strategy was validated through various operating conditions of engine experiments such as setpoint step responses and disturbance rejections.

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References

  1. M. Durnholz, G. Eifler and H. Endres, "Exhaustgas Recirculation - A Measure to Reduce Exhaust Emissions of DI Diesel Engines," SAE 920725, 1992.
  2. L. Mikulic, M. Kuhn, J. Schommers and E. Willig, "Exhaust-emission Optimization of DIDiesel Passenger Car Engine with High-pressure Fuel Injection and EGR," SAE 931035, 1993.
  3. Y. Y. Wang, I. Haskara and O. Yaniv, "Quantitative Feedback Design of Air and Boost Pressure Control System for Turbocharged Diesel Engines," Control Engineering Practice, Vol.19, No.6, pp.626-637, 2011. https://doi.org/10.1016/j.conengprac.2011.02.006
  4. S. J. Jeong, J. W. Chung, J. H. Kang and W. Kang, "The Effect of Control of the VGT and EGR in a Turbocharged Common-rail Diesel Engine on Emissions under Partial Loads Conditions," Transactions of KSAE, Vol.15, No.6, pp.151-158, 2007.
  5. M. Jankovic and I. Kolmanovsky, "Constructive Lyapunov Control Design for Turbocharged Diesel Engines," Control Systems Technology, IEEE Transactions, Vol.8, No.2, pp.288-299, 2000. https://doi.org/10.1109/87.826800
  6. J. Chauvin, G. Corde, N. Petit and P. Rouchon, "Motion Planning for Experimental Airpath Control of a Diesel Homogeneous Charge-compression Ignition Engine," Control Engineering Practice, Vol.16, No.9, pp.1081-1091, 2008. https://doi.org/10.1016/j.conengprac.2007.12.001
  7. V. L. Utkin, C. Hao-Chi, I. Kolmanovsky and J. A. Cook, "Sliding Mode Control for Variable Geometry Turbocharged Diesel Engines," American Control Conference Proceedings, pp.584-588, 2000.
  8. Y. Yoon, S. Choi, M. Ko and J. Lim, "Simplified Turbocharged Diesel Engine Air Path Modeling and Control Using Sliding Mode Controllers," KSAE Annual Conference Proceedings, pp.548-558, 2010.
  9. W. Xiukun and L. del Re, "Gain Scheduled Hinf Control for Air Path Systems of Diesel Engines Using LPV Techniques," Control Systems Technology, IEEE Transactions, Vol.15, No.3, pp.406-415, 2007. https://doi.org/10.1109/TCST.2007.894633
  10. P. Ortner and L. del Re, "Predictive Control of a Diesel Engine Air Path," Control Systems Technology, IEEE Transactions, Vol.15, No.3, pp.449-456, 2007. https://doi.org/10.1109/TCST.2007.894638
  11. I. Park, S. Hong, J. Shin and M. Sunwoo, "Robust Air-to-fuel Ratio Control Algorithm of Passenger Car Diesel Engines Using Quantitative Feedback Theory," Transactions of KSAE, Vol.21, No.3, pp.88-97, 2013. https://doi.org/10.7467/KSAE.2013.21.3.088
  12. L. Eriksson, J. Wahlstrom and M. Klein, "Physical Modeling of Turbocharged Engines and Parameter Identification Automotive Model Predictive Control," Lecture Notes in Control and Information Sciences, L. del Re, F. Allgower, L. Glielmo, C. Guardiola and I. Kolmanovsky, eds., Springer Berlin, Heidelberg, pp.53-71, 2010.
  13. T. Holliday, A. J. Lawrance and T. P. Davis, "Engine-mapping Experiments: A Two-stage Regression Approach," Technometrics, Vol.40, No.2, pp.120-126, 1998. https://doi.org/10.1080/00401706.1998.10485194
  14. K. Lee, I. Park, M. Sunwoo and W. Lee, "AUTOSAR-ready Light Software Architecture for Automotive Embedded Control Systems," Transactions of KSAE, Vol.21, No.1, pp.68-77, 2013. https://doi.org/10.7467/KSAE.2013.21.1.068
  15. I. Park, W. Lee and M. Sunwoo, "Application Software Modeling and Integration Methodology Using AUTOSAR-ready Light Software Architecture," Transactions of KSAE, Vol.20, No.6, pp.117-125, 2012. https://doi.org/10.7467/KSAE.2012.20.6.117